Post-gel polymerisation shrinkage profiling of polymer biomaterials using a chirped fibre Bragg grating.

摘要: A strain profile measurement technique using a chirped fibre Bragg grating (CFBG) sensor by implementing an integration of differences (IOD) method is reported in this paper. Using the IOD spatial distribution along length CFBG extracted from its power reflectance spectra. As proof concept demonstration, developed applied to measure polymerisation shrinkage photo-cured polymer dental composite which exhibits non-uniform attributed curing lamp characteristics. The result compared with that FBG array embedded and correlated degree conversion material also depends on intensity distribution. This technology will have significant impact applications range medical, materials engineering areas where or temperature gradient required smaller scales.